// Copyright 2023 Harness, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package usergroup

import (
	"context"
	"fmt"

	apiauth "github.com/harness/gitness/app/api/auth"
	"github.com/harness/gitness/app/auth"
	"github.com/harness/gitness/app/auth/authz"
	"github.com/harness/gitness/app/services/refcache"
	"github.com/harness/gitness/app/services/usergroup"
	"github.com/harness/gitness/app/store"
	"github.com/harness/gitness/types"
	"github.com/harness/gitness/types/enum"
)

type Controller struct {
	userGroupStore   store.UserGroupStore
	spaceStore       store.SpaceStore
	spaceFinder      refcache.SpaceFinder
	authorizer       authz.Authorizer
	userGroupService usergroup.Service
}

func NewController(
	userGroupStore store.UserGroupStore,
	spaceStore store.SpaceStore,
	spaceFinder refcache.SpaceFinder,
	authorizer authz.Authorizer,
	userGroupService usergroup.Service,
) *Controller {
	return &Controller{
		userGroupStore:   userGroupStore,
		spaceStore:       spaceStore,
		spaceFinder:      spaceFinder,
		authorizer:       authorizer,
		userGroupService: userGroupService,
	}
}

func getSpaceCheckAuth(
	ctx context.Context,
	spaceFinder refcache.SpaceFinder,
	authorizer authz.Authorizer,
	session *auth.Session,
	spaceRef string,
	permission enum.Permission,
) (*types.SpaceCore, error) {
	space, err := spaceFinder.FindByRef(ctx, spaceRef)
	if err != nil {
		return nil, fmt.Errorf("parent space not found: %w", err)
	}

	err = apiauth.CheckSpace(ctx, authorizer, session, space, permission)
	if err != nil {
		return nil, fmt.Errorf("auth check failed: %w", err)
	}

	return space, nil
}
